package backend.Java_Demo.wen.struct;

public class TestDemo {
    public static void main(String[] args) {
        //打印三角形  5行
        for (int i = 1;i<=5;i++){
            for (int j = 5;j>=i;j--)
            {
                System.out.print(" ");
            }
            for (int j =1;j<=i;j++)
            {
                System.out.print("*");
            }
            for (int j =1;j<i;j++)
            {
                System.out.print("*");
            }
            System.out.println();
        }
    }
}
